Acacia papulosa R.S.Cowan & Maslin, Nuytsia 10: 219 (1995)
Dense, resinous shrub 0.25–2 m high. Branchlets glabrous, papillose-tuberculate. Phyllodes ascending to erect, straight to shallowly incurved, terete, 2–6 cm long, 0.7–1 mm diam., acute by short, straight, rigid point, glabrous, papillose on the raised internerve spaces, 8-nerved with nerves impressed at base of longitudinal furrows. Inflorescences simple, 2 per axil; peduncles 3.5–5 mm long, glabrous; heads globular or slightly obloid, 2.5–3.5 mm long, 2.5–3 mm diam., 10–20-flowered; bracteoles linear to fusiform. Flowers 5-merous; sepals to 1/2-united. Pods erect, linear, raised over seeds and one margin slightly constricted between them, slightly curved, to 4 cm long and 2.5 mm wide, thin-coriaceous, glabrous. Seeds longitudinal, oblong, 3–4 mm long, glossy, dark brown-black; aril apical, conical with truncate tip, white.
Restricted to Boxwood Hill and Fitzgerald R. Natl Park, south-western W.A. Grows in spongolitic soil in woodland.
A member of the ‘ A. densiflora group’ superficially very similar to the typical variety of A. eremophila which has pubescent branchlets, larger flower-heads, shorter peduncles which are usually puberulous, spathulate bracteoles, non-resinous pods and elliptic to oblong-ovate seeds.
Type of accepted name
Gorge of Fitzgerald R., W.A., 23 Sept. 1948, C.A.Gardner 9230 ; holo: PERTH; iso: CANB, K, PERTH.
Representative collection
W.A.: 6 km N of Boxwood Hill, K.Newbey 4621 (CANB, PERTH).
(RSC)